Production of indanes

C - Chemistry – Metallurgy – 07 – C

Patent

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C07C 13/465 (2006.01) C07C 2/42 (2006.01) C07C 15/44 (2006.01) C07D 311/76 (2006.01) C07D 311/94 (2006.01)

Patent

CA 1193610

A B S T R A C T The reaction between particular styrenes and particular alkenes to produce alkyl substituted indanes has been discovered to give improved yields when phosphoric acid is used as the catalyst. The catalyst is readily separated from the organic products at the end of the reaction and can be used repeatedly to catalyse further reactions. The product further comprises novel adducts of the alkene and styrene which are converted into the desired isochroman products when the indanes are used as intermediates in the production of isochromans.

398073

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